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... Describe
(I)- The causes of Free-Space attenuation and atmospheric absorption.
Free-space attenuation
Waves in free-space attenuation can reduce the signal strength during transmission, this append when a signal is sent from one point to another by waves and this ones are transmitted in free-space, they became obstructed . ...
Fig1A
Refraction waves:
A cause of this incident is when the wave finds an obstruction; this obstruction will have a different speed of light himself as we can see in some examples on Fig 1 what will cause alterations on direction and speed of the wave as we can see on Fig2
Fig1 Fig2
Interference of electromagnetic waves:
A cause of interference happens when two waves with same amplitude, wavelength and frequency meet at same string point going in different directions this is common in high frequency, sky-wave propagation and micro space-wave propagation.
Approximate Word count = 419
Approximate Pages = 1.7
(250 words per page double spaced)
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